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Standard XII
Biology
Dinoflagellates
Photosyntheti...
Question
Photosynthetic protists having trichocysts are
A
Dinophyceae
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B
Ciliates
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C
Bacillariophyceae
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D
Euglenophyceae.
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Solution
The correct option is
A
Dinophyceae
Trichocyst is a structure present in the cortex of organisms belonging to dinophyceae.
It refers to a cavity and thin threads which upon receiving a stimulus, can be ejected.
These trichocysts can be distributed all over the organism or may be restricted to specific areas.
The correct answer is A.
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